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Where Do You Put Case Statements in Sql?

Sophia Al-Mansoor • • 7 min read
Where Do You Put Case Statements in Sql?
According to Ms SQL Docs, a CASE statement can be used throughout the SELECT statement. CASE can be used in any statement or clause that allows a valid expression. For example, you can use CASE in statements such as SELECT, UPDATE, DELETE and SET, and in clauses such as select_list, IN, WHERE, ORDER BY, and HAVING.

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Correspondingly, how do you do a case statement in SQL?

The SQL CASE Statement The CASE statement goes through conditions and returns a value when the first condition is met (like an IF-THEN-ELSE statement). So, once a condition is true, it will stop reading and return the result. If no conditions are true, it returns the value in the ELSE clause.

Additionally, what is a case statement? A case statement is a concise document that clearly explains what need your organization seeks to meet, how you have and plan to meet that need, and what you could achieve with additional resources.

One may also ask, can we use and in case statement in SQL?

Use CASE expressions anywhere in a SQL statement an expression is allowed. The SQL CASE expression is extremely versatile and used throughout SQLServer queries. In particular it is used in the SELECT column list, GROUP BY, HAVING, and ORDER BY clauses.

How do I check if a case statement is null in SQL Server?

If no value/condition is found to be TRUE, then the CASE statement will return the value in the ELSE clause. If the ELSE clause is omitted and no condition is found to be true, then the CASE statement will return NULL.

Related Question Answers

What is NVL in SQL?

The NVL( ) function is available in Oracle, and not in MySQL or SQL Server. This function is used to replace NULL value with another value. It is similar to the IFNULL Function in MySQL and the ISNULL Function in SQL Server. For example, if we have the following table, Table Sales_Data.

What is coalesce in SQL?

What is COALESCE? COALESCE is a built-in SQLServer Function. Use COALESCE when you need to replace a NULL with another value. It takes the form: COALESCE(value1, value2, , valuen) It returns the first non NULL from the value list.
Sophia Al-Mansoor
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Sophia Al-Mansoor

Sophia analyzes international trade, startup ecosystems, retail transformation, and supply chain logistics for modern digital publications.